133235333031 has 32 divisors (see below), whose sum is σ = 191451617280. Its totient is φ = 82146204000.

The previous prime is 133235333017. The next prime is 133235333051. The reversal of 133235333031 is 130333532331.

It is a happy number.

It is not a de Polignac number, because 133235333031 - 2¹⁷ = 133235201959 is a prime.

It is a super-2 number, since 2×133235333031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133235333031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133235333051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4718806 + ... + 4746956.

It is an arithmetic number, because the mean of its divisors is an integer number (5982863040).

Almost surely, 2^133235333031 is an apocalyptic number.

133235333031 is a deficient number, since it is larger than the sum of its proper divisors (58216284249).

133235333031 is a wasteful number, since it uses less digits than its factorization.

133235333031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30147.

The product of its (nonzero) digits is 21870, while the sum is 30.

Adding to 133235333031 its reverse (130333532331), we get a palindrome (263568865362).

The spelling of 133235333031 in words is "one hundred thirty-three billion, two hundred thirty-five million, three hundred thirty-three thousand, thirty-one".